From Medieval Latinpractizo, from Late Latinpractico(“to do, perform, execute, propose, practise, exercise, be conversant with, contrive, conspire, etc.”), from prāctica(“practical affairs, business”), from Ancient Greekπρακτική(praktikḗ), from πρακτικός(praktikós, “practical”), from πράσσειν(prássein, “to do”).